TY - JOUR
T1 - Crystal growth and thermodynamic properties of (Ca, La) 14Cu24O41
AU - Ammerahl, U.
AU - Kerpen, C.
AU - Büchner, B.
AU - Gross, R.
AU - Micklitz, H.
AU - Revcolevschi, A.
PY - 1999
Y1 - 1999
N2 - High quality, centimeter size single crystals of Ca14-xLaxCu24O41 have been successfully grown using the travelling solvent floating zone (TSFZ) method in association with an image furnace. Crystals grown under oxygen pressures up to 13 bar are single phase for 2 ≤ x ≤ 5. Growth initiated on a single crystalline seed, in combination with an appropriate solvent disk, yields a single domain almost directly from the beginning of the growth. Crystals were characterized by EDX, TGA and X-ray powder diffraction. In addition magnetic susceptibility and specific heat measurements were performed. Long range antiferromagnetic order occurs at TN=9.7 K for xLa = 5, whereas for lower La concentrations TN is considerably suppressed.
AB - High quality, centimeter size single crystals of Ca14-xLaxCu24O41 have been successfully grown using the travelling solvent floating zone (TSFZ) method in association with an image furnace. Crystals grown under oxygen pressures up to 13 bar are single phase for 2 ≤ x ≤ 5. Growth initiated on a single crystalline seed, in combination with an appropriate solvent disk, yields a single domain almost directly from the beginning of the growth. Crystals were characterized by EDX, TGA and X-ray powder diffraction. In addition magnetic susceptibility and specific heat measurements were performed. Long range antiferromagnetic order occurs at TN=9.7 K for xLa = 5, whereas for lower La concentrations TN is considerably suppressed.
UR - http://www.scopus.com/inward/record.url?scp=0042043529&partnerID=8YFLogxK
U2 - 10.1023/a:1022593111330
DO - 10.1023/a:1022593111330
M3 - Article
AN - SCOPUS:0042043529
SN - 0022-2291
VL - 117
SP - 723
EP - 727
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -